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Batang Ai?Transition Zone

by P. R. Phillips,



Document Type: Proceeding Paper

Part of: Concrete Face Rockfill Dams?Design, Construction, and Performance

Abstract:

The Batang Ai Dam in Sarawak includes two concrete faced rockfill embankments. The transition zone between the concrete face and the rockfill consisted of natural river gravels but some blending of fine material was required in order to achieve the specified grading. The compaction of the transition zone was carried out on horizontal layers by a vibrating roller but the sloping face was compacted by a vibrating plate. The compacted sloping surface was protected from rainfall erosion by 'chicken' wire mesh and hand placed cement mortar. The placing, compaction, and protection method proved satisfactory under the rainfall conditions of Sarawak.

Subject Headings: Embankment dams | Vibration | Granular materials | Compaction (material) | Slopes | Rockfill dams | Rainfall

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